/*
 *
 * Copyright 2002-2004 The Ant-Contrib project
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package net.sf.antcontrib.cpptasks.compaq;

import net.sf.antcontrib.cpptasks.OptimizationEnum;
import net.sf.antcontrib.cpptasks.compiler.CommandLineFortranCompiler;
import net.sf.antcontrib.cpptasks.compiler.LinkType;
import net.sf.antcontrib.cpptasks.compiler.Linker;
import net.sf.antcontrib.cpptasks.compiler.Processor;
import org.apache.tools.ant.types.Environment;

import java.io.File;
import java.util.Vector;

import static net.sf.antcontrib.cpptasks.CUtil.getPathFromEnvironment;

/**
 * Adapter for the Compaq(r) Visual Fortran compiler.
 *
 * @author Curt Arnold
 */
public class CompaqVisualFortranCompiler extends CommandLineFortranCompiler {
    private static final CompaqVisualFortranCompiler[] instance =
            new CompaqVisualFortranCompiler[]{new CompaqVisualFortranCompiler(false, null)};

    public static CompaqVisualFortranCompiler getInstance() {
        return instance[0];
    }

    private CompaqVisualFortranCompiler(boolean newEnvironment, Environment env) {
        super("DF", null, new String[]{".f90", ".for", ".f"}, new String[]{".i", ".i90", ".fpp",
                ".inc", ".bak", ".exe"}, ".obj", false, null, newEnvironment, env);
    }

    protected void addImpliedArgs(final Vector<String> args,
                                  final boolean debug,
                                  final boolean multithreaded,
                                  final boolean exceptions,
                                  final LinkType linkType,
                                  final Boolean rtti,
                                  final OptimizationEnum optimization) {
        args.addElement("/nologo");
        args.addElement("/compile_only");
        if (debug) {
            args.addElement("/debug:full");
            args.addElement("/define:_DEBUG");
        } else {
            args.addElement("/debug:none");
            args.addElement("/define:NDEBUG");
        }
        if (multithreaded) {
            args.addElement("/threads");
            args.addElement("/define:_MT");
        } else {
            args.addElement("/nothreads");
        }
        boolean staticRuntime = linkType.isStaticRuntime();
        if (staticRuntime) {
            args.addElement("/libs:static");
        } else {
            args.addElement("/libs:dll");
        }
        if (linkType.isSharedLibrary()) {
            args.addElement("/dll");
            args.addElement("/define:_DLL");
        }
    }

    public void addWarningSwitch(Vector<String> args, int level) {
        switch (level) {
            case 0:
                args.addElement("/nowarn");
                break;
            case 1:
            case 2:
                break;
            case 3:
                args.addElement("/warn:usage");
                break;
            case 4:
                args.addElement("/warn:all");
                break;
            case 5:
                args.addElement("/warn:errors");
                break;
        }
    }

    public Processor changeEnvironment(boolean newEnvironment, Environment env) {
        if (newEnvironment || env != null) {
            return new CompaqVisualFortranCompiler(newEnvironment, env);
        }
        return this;
    }

    protected void getDefineSwitch(StringBuilder buf, String define, String value) {
        buf.append("/define:");
        buf.append(define);
        if (value != null && !value.isEmpty()) {
            buf.append('=');
            buf.append(value);
        }
    }

    protected File[] getEnvironmentIncludePath() {
        return getPathFromEnvironment("INCLUDE", ";");
    }

    protected String getIncludeDirSwitch(String includeDir) {
        StringBuilder buf = new StringBuilder("/include:");
        if (includeDir.contains(" ")) {
            buf.append('"');
            buf.append(includeDir);
            buf.append('"');
        } else {
            buf.append(includeDir);
        }
        return buf.toString();
    }

    public Linker getLinker(LinkType type) {
        return CompaqVisualFortranLinker.getInstance().getLinker(type);
    }

    public int getMaximumCommandLength() {
        return 1024;
    }

    protected void getUndefineSwitch(StringBuilder buf, String define) {
        buf.append("/undefine:");
        buf.append(define);
    }
}
